1722130153128 has 640 divisors, whose sum is σ = 6348329856000. Its totient is φ = 422557793280.

The previous prime is 1722130153027. The next prime is 1722130153151. The reversal of 1722130153128 is 8213510312271.

1722130153128 is a `hidden beast` number, since 1 + 7 + 221 + 301 + 5 + 3 + 128 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1722130153092 and 1722130153101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 359298700 + ... + 359303492.

It is an arithmetic number, because the mean of its divisors is an integer number (9919265400).

Almost surely, 2^{1722130153128} is an apocalyptic number.

1722130153128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722130153128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3174164928000).

1722130153128 is an abundant number, since it is smaller than the sum of its proper divisors (4626199702872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722130153128 is a wasteful number, since it uses less digits than its factorization.

1722130153128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Adding to 1722130153128 its reverse (8213510312271), we get a palindrome (9935640465399).

The spelling of 1722130153128 in words is "one trillion, seven hundred twenty-two billion, one hundred thirty million, one hundred fifty-three thousand, one hundred twenty-eight".